Question: The FL Crime data file on the text CD contains

The FL Crime data file on the text CD contains data for all counties in Florida on y = median annual income (thousands of dollars) for residents of the county and x = percent of residents with at least a high school education. The table shows some summary statistics and results of a regression analysis.
a. Find the correlation r. Interpret
(i) The sign and
(ii) The magnitude.
b. Find the predicted median income for a county that is 1 standard deviation above the mean on x , and use it to explain the concept of regression toward the mean.

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  • CreatedSeptember 11, 2015
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